introduction to anti-inflammatory nutrition...why are we fatter? dietary “answers” in the early...
TRANSCRIPT
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Introduction To Anti-Inflammatory Nutrition
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Why Do We Gain Weight, Get Sick,
and Age Faster?
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Chronic Diseases Associated With Excess Inflammation
• Obesity• Metabolic Syndrome• Type 2 Diabetes• Heart Disease• Cancer• Neurological
– Alzheimer’s, Depression, ADHD, Parkinson’s• Auto-immune
– Type 1 Diabetes, RA, Multiple Sclerosis• Asthma• Allergies• Other inflammatory conditions (“itis”)
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What Is Inflammation?
• Ancient Greeks– Internal Fire
• Ancient Romans–Heat–Pain–Swelling–Redness
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What Is Inflammation?
• Complex orchestration of pro-inflammatory and anti-inflammatory events
• Usually associated with pain• Mediated by eicosanoids• Treated by drugs that alter eicosanoids
– Aspirin– NSAID’s– COX-2 inhibitors– Steroids
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But You Need A Zone
• Too little of an inflammatory response – Sitting target for microbes– Injuries never heal
• Too much of an inflammatory response– The body attacks itself
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Events That Turn On Inflammatory Responses
• Microbial invasion
• Injuries
• Diet
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Overview Of Anti-Inflammatory Nutrition
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The Science Of The Zone
• Improved hormonal control
• Resolution of inflammation
• Control of gene expression
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Unique Roles For Each Dietary Intervention
• Zone Diet– Reduction of the initiation of inflammation
• Omega-3 Fatty Acids– Acceleration of the resolution of
inflammation
• Polyphenols– Slowing of the aging process
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Benefits Of Being In The Zone
• Reduce the likelihood of chronic disease
• Slow the rate of aging
• Defines the clinical markers of wellness
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Clinical Markers That Define The Zone
• AA/EPA ratio– Marker of inflammation– Maintain between 1.5 and 3
• TG/HDL ratio– Marker of insulin resistance – <1 (mg/dl) or <0.4 (mmol/l)
• HbA1C– Marker of long-term glycemic control– 5%
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Our Two Immune Systems
• Innate (Strongly affected by the diet)– Primitive– Early response– Based on pattern recognition
• Adaptive (Weakly affected by the diet)– More advanced– Slowly responding– Based on memory
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Innate Immune SystemMade Simple
Toll‐Like Receptors (TLR) and AGE Receptors (RAGE)
NF‐κB
DNA
Inflammatory Enzymes (COX‐2) And Cytokines (IL‐1, IL‐6, TNF)
Cytokine Receptors
AA PPARγ
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Dietary Controls on NF-κB Activity
Omega‐6 Fatty Acids, Saturated Fatty Acids, Excess Carbs ,and Excess
Calories
Zone Diet, Omega‐3 Fatty Acids, and Polyphenols
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Phases Of Inflammation
Initiating Event
Pro-inflammatory Initiation ResponseCellular Destruction
Anti-Inflammatory Resolution ResponseCellular Rejuvenation
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What Is CellularInflammation?
• Mismatch between the initiation and resolution of inflammation
• Chronic activation of innate immune system
• Inflammation below the perception of pain
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What Causes Cellular Inflammation?
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The Perfect Nutritional Storm
• Increased Omega-6 Consumption
• Increased Refined Carbohydrate Consumption
• Decreased Omega-3 Consumption
• Decreased Polyphenol Consumption
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Omega‐6 Fatty Acids
How It Happens
Cellular Inflammation
Arachidonic Acid
Activated by InsulinInhibited by Omega‐3 Fats
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Three Stages Of Disease
Wellness
Cellular Inflammation
Chronic Disease
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The Best Way To Reach the Zone Is
Through The Anti-Inflammatory
Zone Diet
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Anti-Inflammatory Supplements For The Anti-Inflammatory
Zone Diet:
Fish Oil and Polyphenols
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Omega-3 Fatty Acids:
Putting Our the Inflammatory Fire
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Clinical Benefits Of High-Dose Fish Oil
• Heart Disease• Cancer• Depression• Attention Deficit Disorder• Multiple Sclerosis• Brain Trauma• Alzheimer’s• Chronic Pain• Osteoporosis• Skin Disorders• Fertility• Fat Loss
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Polyphenols:
The Color of Anti-Inflammation Nutrition
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Mechanisms Of Action
• Anti-oxidants
• Anti-inflammatory
• Anti-aging
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A New Powerful Message
• Diet can turn on inflammatory genes
• Diet can turn off inflammatory genes
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Treating Nutrition As Gene Therapy
Zone Diet
Omega‐3 Fatty Acids
Polyphenols
INFLAMMATORY GENES
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Why Anti-Inflammatory Nutrition Is Important
Cellular Inflammation
Obesity
Diabetes
Alzheimer’s
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The Zone Diet
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Beginnings Of The Zone Diet
• Epidemiological studies of Greenland Eskimos (mid-1970s)– Little heart disease, cancer, depression,
multiple sclerosis, etc.– Diet rich in omega-3 fatty acids
• 1982 Nobel Prize in Medicine– Role of eicosanoids in inflammation
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Food As A Drug
Food
Macronutrients(Carbohydrates, Proteins, Fat)
Hormonal Response(Insulin, Glucagon, Eicosanoids)
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Insulin
Storage Hormone
Glucagon
Mobilization Hormone
Eicosanoids
Master Hormone
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Eicosanoids Are ControlledBy Dietary Fat And Insulin
Glucagon Insulin
“Good” Eicosanoids “Bad”Eicosanoids
Dietary Fat
Essential Fatty Acids
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High‐Carbohydrate Diets
Excess Dietary Glucose
Fat Accumulation
Zone
Insulin Balance
Loss of Inflammatory Fat
Ketogenic Diets
Deficient Dietary Glucose
Cortisol Increase
The Zone Diet is Based Upon on The Balance of the Protein-to-
Glycemic LoadProtein‐to‐Glycemic Load Ratio
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How We Get Fat
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Why Not Eat Less, Exercise More?
• Eating less increases biological defense mechanisms that increases hunger
• Exercising more increases hunger
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Why Are We Fatter?
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Dietary “Answers” In The Early 1990s
• Fat makes you fat– If no fat touches your lips, no fat reaches
your hips– Can eat more food, and not gain weight– Ornish diet (very-low fat diet)
• Carbs makes you fat– Replace carbs with even more fat– Can eat more food and not gain weight– Atkins diet (ketogenic diet)
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What Is Metabolism?
• Conversion of dietary calories into chemical energy (ATP)
• Fat is high-octane fuel for ATP production
• The Fat Trap– Excess dietary calories get trapped in
your fat cells and can’t get out to be converted into ATP
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What Causes A Fat Trap?Diet
Inflammation
Insulin Resistance
Fat Trap
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A Third Choice Appears In 1995
• Inflammation makes you fat– Blood, brain, and the gut– Have to reduce calories, but without
hunger or fatigue– Zone Diet
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Zone Diet Recommendations (1995)
• 40% low-glycemic load carbs
• 30% low-fat protein
• 30% monounsaturated fat, but low in omega-6 and saturated fats
• 1,200 to 1,500 calories per day
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Dietary Guidelines From The Joslin Diabetes Research Center At Harvard
(2007)
• 40% low glycemic load carbs
• 20-30% low-fat protein
• 30-40% monounsaturated fat
• 1,200 to 1,500 calories per day
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Per Cent Calories On A 40-30-30 Dietary Balance Can Be
Deceiving Macronutrient 1,200 calories/day 1,500 calories/day
Carbohydrate 120 g/day 150 g/day
Protein 90 g/day 112 g/day
Fat 40 g/day 50 g/day
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What 1,200 Calories Per Day Represents On The Zone Diet • Carbohydrates (120 grams)
– 8 servings (500 g or 4 cups) of cooked vegetables– 2 servings (200 g or 1 cup) of fresh fruit– 1 serving each of lentils (1/2 cup) and oatmeal (1/2
cup) – Provides >40 grams of total fiber
• Protein (90 grams)– Low-fat protein sources
• Fat (40 grams)– 2 tablespoons of extra virgin olive oil
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Zone Diet and Hormonal Balance
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Zone Diet Induces Rapid Changes in Hormonal Responses
Zone Meal
High Carbohydrate, Lower Glycemic Load Meal
High Carbohydrate, High Glycemic Load Meal
0
400
800
1200
1600
pmol / L
0 1 2 3 4 5Time (hr)
Serum Insulin (change)
ng/L
‐20
‐10
0
10
20
0 1 2 3 4 5
Time (hr)
Plasma Glucagon (change)
Ludwig et al. Pediatrics 103:e26 (1999)
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Zone Diet and Reduction of Inflammation
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The Zone Diet Reduces Cellular Inflammation
-50
-40
-30
-20
-10
0
USDA Zone
Pereira et al. JAMA 292: 2482 (2004)
CRP
Redu
ctio
n (%
)
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The Zone vs.
Ketogenic Diets
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Weight Loss
Johnston et al AJCN 83:1055 (2006)
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Fat Loss
Johnston et al AJCN 83:1055 (2006)
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Energy
Johnston et al AJCN 83:1055 (2006)
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Ketogenic Diets Increase Cellular Inflammation
0
10
20
30
40
High-Protein Zone
AA/EPA Ratio Start
6 Weeks
Johnston et al AJCN 83: 1055 (2006)
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Metabolic Changes On AKetogenic Diet
• 18% increase in cortisol levels
• 12% decrease in T3 levels
Ebbeling et al. JAMA 307:267 (2012)
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Key Points Of The Zone Diet
• Calories do count• You need adequate protein• Balance your plate to balance your
hormones• Reduce omega-6 and saturated fat• Consume colorful carbs• Fermentable fiber is important
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Reducing Insulin Resistance Is The Key
Benefit Of TheZone Diet
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What Is Insulin Resistance?
• Inability to transit insulin signal to interior of the cell
• Hormonal communication is garbled
• Caused by increased inflammation
• Insulin is the central point for metabolism
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Insulin Resistance Is Highly Organ Dependent
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Hypothalamus
• Balances of energy intake and expenditure– Satiety signals from gut matched to
hormonal signals (leptin and insulin) from the blood
• Sensitive to excess calories and saturated fats– ER stress and inflammation
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Hypothalamic Inflammation Is Rapid
• Within 24 hours of HFD
• Precedes any weight gain
• Fatty acid sensors– Palmitic acid and TLR-4 receptors
• Pro-inflammatory– Omega-3 and oleic acids
• Anti-inflammatory
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Liver
• Can start earlier than adipose tissue– 3 days after HFD– Connection to hypothalamus via vagus
nerve• Increase in cholesterol levels• Development of fatty liver
– 25% of all Americans– 90% of type 2 diabetics
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Adipose Tissue
• Expansion of existing fat cells
• Hypoxia of expanded fat cells
• Healthy fat cells turning sick and then dying creating more inflammation
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Muscle
• Primary site for glucose uptake
• Inflammatory cytokines from adipose tissue and liver disrupt glucose uptake
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Zone Diet: An Anti-Inflammatory DietKey Aspects:• Based on the glycemic load• Balance of protein, carbohydrates, and fat
What’s Driving Physician Interest:• Diet without hunger and fatigue• Flexibility• Moderate approach
Implications:• Long-term compliance• Medically validated
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How Difficult Is To Follow The Zone Diet?
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Start With:
Low‐Fat Protein
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Balance With:
ColorfulCarbohydrates
Low‐Fat Protein
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Finally Add Fat!
Good Choices Low in Omega‐6 and Saturated Fats
Extremely Bad Choices
High in Omega‐6 Fats
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Vegetables
Fruits
Low‐fat Protein
Monounsaturated Fat
Grains and Starches(Use in Moderation)
Zone Food Pyramid
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The Zone Diet Is A Blueprint For Hormonal Balance,
Not A Philosophy• Vegan Zone
– No animal protein, no dairy or egg protein• Lacto-ovo Vegetarian Zone
– No animal protein• Paleo Zone
– No legumes, no dairy protein• Omnivore Zone
– No restrictions on protein sources
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The Zone Diet Is The Evolution Of The Mediterranean Diet
• It’s Mediterranean ingredients with the Zone blueprint for hormonal balance
• The more white you put on the plate, the more inflammation you create
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Effect Of Diet On NF-κB Activity In Humans
• High glycemic load diet increases NF-κB activity
Dickinson et al AJCN 87:1188 (2008)
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The Best Way To Reduce Cellular Inflammation
• Take omega-6 fats out of the diet– Reduce raw materials needed to produce
arachidonic acid
• Reduce the use of high-glycemic carbs– Lower insulin making it more difficult to
produce arachidonic acid from omega-6 fatty acids
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What Can You Expect?• 2-3 Days
– Lack of hunger– Better mental focus
• 3-4 Days– Surge of physical energy
• 7 Days– Clothes are fitting better
• 14 Days– Better handling of stress
• 30 Days– Greatly improved blood chemistry
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Here’s The Problem
• Omega-6 fatty acids are the most inexpensive calories in the world
• Refined carbohydrates are the foundation of processed foods
• It’s easier to change your religion than to change your diet
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An Alternative Way To Reduce Cellular Inflammation:
Anti-Inflammatory Supplements